Using TIM3 for Servo Instead of Motor on SpeedyBee F7 V3 #11468
Description
I’m working on a custom configuration for a SpeedyBee F7 V3 target in iNav and I need some clarification regarding timer usage and "timerOverrides".
Currently, the target configuration forces all these timers for motors:
timerOverridesMutable(timer2id(TIM2))->outputMode = OUTPUT_MODE_MOTORS;
timerOverridesMutable(timer2id(TIM3))->outputMode = OUTPUT_MODE_MOTORS;
timerOverridesMutable(timer2id(TIM4))->outputMode = OUTPUT_MODE_MOTORS;
I would like to modify this so that TIM3 is used only for servo output, not motors.
My intended setup:
- TIM2 (S1, S2) → Motors
- TIM3 (S3) → Servo only
- TIM4 (S4, S5) → Motors
Timer hardware mapping:
timerHardware_t timerHardware[] = {
DEF_TIM(TIM2, CH1, PA15, TIM_USE_OUTPUT_AUTO, 0, 0), // S1
DEF_TIM(TIM2, CH2, PB3, TIM_USE_OUTPUT_AUTO, 0, 0), // S2
DEF_TIM(TIM3, CH1, PB4, TIM_USE_OUTPUT_AUTO, 0, 0), // S3
DEF_TIM(TIM4, CH1, PB6, TIM_USE_OUTPUT_AUTO, 0, 0), // S4
DEF_TIM(TIM4, CH2, PB7, TIM_USE_OUTPUT_AUTO, 0, 0), // S5
DEF_TIM(TIM3, CH2, PB5, TIM_USE_OUTPUT_AUTO, 0, 0), // S6 (clash with S2, DShot issue)
DEF_TIM(TIM3, CH3, PB0, TIM_USE_OUTPUT_AUTO, 0, 0), // S7
DEF_TIM(TIM3, CH4, PB1, TIM_USE_OUTPUT_AUTO, 0, 0), // S8
DEF_TIM(TIM8, CH3, PC8, TIM_USE_LED, 0, 0), // LED
DEF_TIM(TIM5, CH1, PA0, TIM_USE_ANY, 0, 0), // Camera Control
};